I am sure Charles and some are you are thinking the same thing I am on the 400mW unit, something just does not add up when manufactures are doing the same power and the cost of the card is the more then the cost of the full unit! I have not see this exact board but I have see a RTl8186 design that looks just like this one that's 80mW-100mW where the software was changed to output 400mW. When you use a basic power meter the "AVERAGE" power was 400mW but this is a false positive. With this setup the true power output of the DSSS channel did not go up very much. What did go up was the side lobes (2nd to 5th!) where on channel 6 it took up a full 70Mhz where is can only use 20Mhz! An basic average power meter looks at the full band when taking a power reading which is confusing if you do not have a SA to back up the info.
Look at the spec what did no look right was the power output of the OFDM (13.5dBm) vs. the DSSS (26dBm). If they where using a PA is would amp both in DSSS and OFDM modes equally, which is why I think they are just changing the firmware to increase the power on DSSS only. Looking at all the RTL8186 designs I have seen over the past 24 months 13.5 OFDM is 18-20dBm DSSS not 400mW We will have to wait in see what the true case is, most of the WISP that have been in this for a year or so have some type of SA and can do a basic level test to see for themselves. We of course plan on getting one and doing our own level of testing using high end Agilent to test QAM, spectral mask, EVM etc and see what this unit truly is. Bottom line if this is a software patch and not designed to a true 400mW its going to adversely effect WISP network in a major way. Sincerely, Tony Morella Demarc Technology Group, A Wireless Solution Provider Office: 207-667-7583 Fax: 207-433-1008 http://www.demarctech.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Charles Wu Sent: Wednesday, June 28, 2006 10:32 AM To: 'WISPA General List' Subject: RE: [WISPA] $100 CPE? And don't forget that it's WiFi vs. a proprietary engineered outdoor WISP protocol -Charles ------------------------------------------- CWLab Technology Architects http://www.cwlab.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Travis Johnson Sent: Tuesday, June 27, 2006 11:23 PM To: WISPA General List Subject: Re: [WISPA] $100 CPE? That they are working on "developing" a new product that will have bugs, hardware issues, etc. for the first 6-12 months. Trying to get to $100 (without antenna, BTW). Trango has a $149 unit that is from a company that is established, it has a built in antenna, PoE, etc. and is ready to go today. For $30 more, the range goes from 3 miles to 13 miles. ;) Travis Microserv Brian Rohrbacher wrote: > http://www.dslreports.com/forum/remark,15749577 > > http://www.dslreports.com/forum/remark,16364972 > > > > What does everyone think? > > > -- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
